High Voltage Disconnector Operation Specifications And Safety Guidelines

If there is a sound from high voltage isolator, the cause should be found out. Otherwise, high voltage isolator switch should not be pulled or closed hard.
hv isolator. When a locking device to prevent misoperation is installed between the grounding switch and the circuit breaker, the switching operation must be performed in sequence. If the hv isolator switch switching operation is locked and cannot be operated, the cause should be found out. Under normal circumstances, the lock should not be released at will.
If high voltage electrical isolator and the grounding switch cannot be operated correctly due to the failure of the locking device, the lock must be strictly followed according to the locking requirements. Check the position status of the corresponding circuit breaker and isolator high voltage. Only after verification can the lock be released for operation;